The Vickers Tactical Slide Racker GSR-03 is another collaborative effort between Vickers Tactical and TangoDown Inc, adding to their line of Glock accessories. It follows on the heels of their GSR-01 Slide Racker for the single-stack Glock 42, and is available for the Glock 17/19/22/23/26/27/34/35 models.